@article{PismaZhETF.18.122,
    title = {Stratification of current or field in systems with positive differential resistance},
    author = {Kerner, B. S. and Osipov, V. V.},
    journal = {πΙΣΨΝΑ Χ φότζ},
    volume = {18},
    issue = {2},
    pages = {122},
    year = {1973},
    doi = {},
    url = {http://jetpletters.ru/ps/0/article_23897.shtml},
}